Table 1.

The adaptation period of sucrose intake test

Time	Course of the experiment
The 1st day 8:00	food and water deprivation for 24 h
The 2nd day 8:00 an interval of 3 days	one-bottled-sucrose test sessions (last 1 h)
The 6th day 8:00	food and water deprivation for 24 h
The 7th day 8:00	one-bottled-sucrose test sessions (last 1 h)
an interval of 3 days
The 11th day 8:00	food and water deprivation for 24 h
The 12th day 8:00 an interval of 3 days	one-bottled-sucrose test sessions (last 1 h)
The 16th day 6:30	weighed body weight and open field test
8:00	food and water deprivation for 24 h
The 17th day 8:00	one-bottled-sucrose test sessions (last 1 h)
The 17th day 9:00	The beginning of CUS procedure